Water Distribution Characteristics of Slopes Based on the High-Density Electrical Method

Lu, Xiaochun; Liu, Xiao; Xiong, Bobo; Xue, Chengqi; Tian, Bo; Cai, Zhenglong; Shuang, Ning; Zhou, Mingxing

doi:10.3390/w15050895

Cited by 4 publications

(3 citation statements)

References 10 publications

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“…The results demonstrated the processes where a significant expansion of wet areas inside both studied rock masses is associated with the logging operations. Lu et al [15] used the HDR method to detect the Baijiabao landslide and derived the water content based on the inversion of the resistivity model. Kang et al designed [16] a physical model of a rainfall-affected slope and used the HDR method to measure the apparent resistivity of the slope rock and soil mass at different rainfall times to analyze the formation process of internal disaster sources of the rainfall-affected slope.…”

Section: Introductionmentioning

confidence: 99%

Structural Detection and Stability Monitoring of Deep Strata on a Slope Using High-Density Resistivity Method and FBG Strain Sensors

Li,

Wei,

et al. 2024

Applied Sciences

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Under the influence of a variety of unfavorable factors, slope instability may occur, so the stability of the slope needs to be analyzed. In this paper, combined with the geological investigation data, the slope engineering geological profiles are derived based on 2D inversion maps of the high-density resistivity (HDR) method to obtain the overburden layer thickness. Then, a finite element model is established based on the mechanical and geometric parameters of the slope to analyze the displacement and deformation characteristics and obtain information about the potential sliding surface. The above analysis results are combined to determine the effective monitoring field and deploy (Fiber Bragg Grating) FBG strain detection piles for deep strain monitoring. The analysis showed that the shape and location of the potential sliding surface of the slope from the numerical simulation are consistent with those delineated by the HDR profile. The monitoring results show the rock and soil on the north side of the slope are soft and have poor stability, which is consistent with the HDR method detection results. Adopting the HDR method to identify the slope’s overall geological structure combined with FBG strain detection piles to obtain the deep deformation provided an effective monitoring technique for slope stability assessment.

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Section: Introductionmentioning

confidence: 99%

Structural Detection and Stability Monitoring of Deep Strata on a Slope Using High-Density Resistivity Method and FBG Strain Sensors

Li,

Wei,

et al. 2024

Applied Sciences

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“…At present, high-density electrical method is more widely used in two-dimensional detection of the profile structure of geological structure [1][2][3]. Its advantages are fast data acquisition, intuitive images and high resolution.…”

Section: Introductionmentioning

confidence: 99%

Research and Application of 3D High Density Electrical Method

Han,

Wang,

Tan

et al. 2023

J. Phys.: Conf. Ser.

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3D high-density electrical method is a kind of artificial underground stable flow field established by setting electrodes on the ground, which is used to analyze the underground distribution of geological bodies, so as to predict or solve the problems in the planning, design and construction of projects. However, 3D high-density electrical method still has its limitations. In order to study the resolution ability of 3D high-density electrical method in actual underground cavity investigation, a comparative test of two-pole device and dipole device was established in this paper. The results show that the two-pole device can detect large depth but low resolution, while the dipole device is more affected by depth and has better effect in the measurement of low resistance abnormal body.

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“…The highdensity electrical method can also be employed to measure the water content within the slope. This capability allows for a comprehensive assessment of the slope's hydrological conditions, providing important information for evaluating slope stability and potential water-related risks (Lu et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Detection and evolution of disaster sources in high slopes of open-pit mines based on time-lapse high-density electricity method

Sen,

Zihao

2023

Front. Earth Sci.

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High and steep slopes in open pit mines used for ore production require careful monitoring to ensure stability and safeguard lives, property, and social welfare. Understanding the evolutionary characteristics of hazard sources within these slopes is crucial for effective slope management. This article presents a novel approach to identify the evolution of hazard sources within slopes by utilizing the derivative of normalized inversion data versus time as a characteristic feature. To analyze the evolution of hazard sources, raw apparent resistivity data collected at different times are processed using smoothing and wavelet denoising algorithms to reduce noise. Geological constraints are then applied to the collected data through the parametric region method. The least squares method is employed for independent inversion, and the inversion results are standardized. Subsequently, the standardized inversion results are used to derive the derivative of resistivity versus time equation, which reveals the evolution of hazard sources within the slope. A case study is conducted on a large open pit rocky slope to analyze the effectiveness of the proposed approach. The results demonstrate the successful reduction of noise through the smoothing and wavelet threshold denoising algorithms, effectively suppressing interference caused by acquisition equipment and environmental electromagnetic noise. The application of the parametric region method with geological constraints highlights the spatial and temporal evolution characteristics of hazard sources within the slope. The findings indicate varying degrees of evolution of hazard sources within the slope, with significant changes observed mainly in the shallow part influenced by water erosion and blasting vibration. Areas with lithological stability show minimal changes, while original hazard source areas have evolved to different extents, distinguishable based on the size and sparsity of contour values. By combining inversion data analysis, noise reduction techniques, and geological constraints, the proposed approach provides valuable insights into the evolution of hazard sources within slopes. This information can aid in the development of effective slope management strategies in open pit mines, contributing to enhanced safety and protection of valuable assets.

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Water Distribution Characteristics of Slopes Based on the High-Density Electrical Method

Cited by 4 publications

References 10 publications

Structural Detection and Stability Monitoring of Deep Strata on a Slope Using High-Density Resistivity Method and FBG Strain Sensors

Structural Detection and Stability Monitoring of Deep Strata on a Slope Using High-Density Resistivity Method and FBG Strain Sensors

Research and Application of 3D High Density Electrical Method

Detection and evolution of disaster sources in high slopes of open-pit mines based on time-lapse high-density electricity method

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